Moist and salty atmospheres have a tendency to mix with oil and grease and destroy their rust preventive qualities. Inspect all parts frequently for rust or corrosion.

When the Ml6 is not in use, cover all metal surfaces with a thin film of MILITEC or LSA.

Section 8. Ml6 Functional Checklist

General. A complete functional check of the Ml6 consists of checking the operation of the Ml6 with the Fire Control Selector in the SAFE, SEMI and AUTO positions. The following is a rapid and complete check. Any portion of the check may be used separately to determine the operational condition of any specific selector position.

Step 1 Clear M16.

Step 2 Set Fire Control Selector on SAFE.

Step 3 Pull takedown pin and open receivers.

Step 4 Pull trigger, hammer should not fall.

Step 5 Set Fire Control Selector on SEMI.

Step 6 Pull trigger, hammer should fall.

Step 7 Hold trigger to rear, recock the hammer manually and the hammer should be engaged by the Disconnect.

Step 8 Release trigger and the hammer should be released by the Disconnect and drop to engagement by the Trigger Sear.

Step 9 Set the Fire Control Selector on AUTO.

Step 1O Pull trigger and the hammer should fall.

Step 11 Hold the trigger to rear and manually cock the hammer. The hammer should be engaged by the Automatic Sear.

Step 12 With trigger still held to rear, push the top of the Automatic Sear forward and hammer should drop.

Step 13 With the trigger still held to the rear, manually cock the hammer and the hammer will be engaged by the Automatic Sear.

Step 14 Release the trigger and push the top of the Automatic Sear forward. The Automatic Sear should release the hammer and the hammer should drop to the engagement with the Trigger Sear.

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